Wrath moves beside her as she leads the way, following the pull of the moon, and he trusts her to lead them true. And she does. Her mother would be proud that she feels such a conviction to stop the wrong that is being done to the moon - red as it currently is in the sky.

He slows down as they hear the chanting, and he gestures to Emilia toward the edge of the upcoming clearing. He draws the shadows along with them to conceal their movements and allow them to investigate from a distance. The shadows curl up around the both of them, slipping around her limbs in cool, familiar greeting, and they do the same to him.

These witches are desperate but desperation does not excuse their behavior here (ignorance can only forgive so much, but after speaking to the Lumberjack... they can stop this ritual without any violence needed). It's clear from here that they are using the mirror shards to channel the energy of the moon, and beyond that, there's a circle of ash on the ground - guarded, yes, but their abilities will allow them to affect this ritual without having to get too close.

They are hardly the only ones providing distractions for this ritual, attempting to stop it from happening.